|Race||tiefling, (Half Human, Half-fiend)|
Source: Erevis Cale trilogy, The Twilight War trilogy
Magadon Kest was a tiefling Psionicist (or "mind mage"); sired by Mephistopheles, Archduke of Cania, and a human woman. Close friend of the late Erevis Cale, and the Exarch Drasek Riven, he was instrumental in the struggle against the returned Netherese who were led by Shar worshiper Rivalen Tanthul.
After the return of the Netherese city of Sakkors, Magadon was captured by the Shadovar and force to link his mind with the quasi-sentient Mythallar known as the Source. As a result, Magadon is "addicted" to the Source. His power when linked to it was increased greatly but, the addiction made him a puppet for the Netherese lords, which used the Mythallar to create soldiers for the upcoming Shadowstorm. Working with Cale and Riven, he was eventually freed from his link with the Source but continued to struggle with the addiction.
Magadon confronted his father, with the aid of Riven and Cale, in Cania, after the Archduke succeeded in facilitating the release of Mag's devilish nature. Though Mephistopheles had lured the three companions through Magadon, he engaged them in battle. Magadon was slain by his father after successfully pushing his devilish nature from the forefront of his mind. Rather than let his friend die, Cale made a deal with the Archduke. Mephistopheles agreed to resurrect Magadon on the condition that a portion of mask's divinity would be given to him when after the defeat of Kesson Rel. As collateral Mephistopheles kept half of Magadon's soul; returning the other portion to Magadon who was returned to life.
Magadon continued to help his companions against the Netherese, Shar and, ultimately, Kesson Rel, though with only half a soul his powers, and even his will, were much diminished. After the ensuing battle with Rel, Erevis and Drasek both absorbed portions of of the divine power which Rel had stolen from Mask. Cale then returned to Cania and by sacrificing himself fulfilled his bargain with Mephistopheles. The devil then returned the other half of Magadon's soul.